EP 0446812 B1 19960306 - Photosensor and image scanner utilizing the same
Title (en)
Photosensor and image scanner utilizing the same
Title (de)
Fotodetektor und Bildabtaster dafür
Title (fr)
Photocapteur et balayeur d'image utilisant le même
Publication
Application
Priority
JP 6785090 A 19900315
Abstract (en)
[origin: EP0446812A2] A photosensor (20a) has a pair of n-type semiconductor layers (21U, 21D) formed on the major surface of a p-type semiconductor substrate (31). A light-shielding pattern (24) comprised of unit light-shielding layers (33) is formed on the major surface of the substrate. When the major surface is scanned by a light beam in the direction (DX) in which the unit light-shielding layers are aligned, a couple of photo-conversion signals indicating a current position of the light beam on the photosensor are generated in the photosensor. Since the light-shielding pattern is directly provided on the sensor body, no grating glass is required other than the photosensor. <IMAGE>
IPC 1-7
IPC 8 full level
H04N 1/028 (2006.01); H01L 27/14 (2006.01); H04N 1/047 (2006.01); H04N 1/113 (2006.01); H04N 1/12 (2006.01)
CPC (source: EP US)
H04N 1/047 (2013.01 - EP US); H04N 1/1135 (2013.01 - EP US); H04N 1/12 (2013.01 - EP US); H04N 2201/02441 (2013.01 - EP); H04N 2201/02443 (2013.01 - EP); H04N 2201/03154 (2013.01 - EP); H04N 2201/03158 (2013.01 - EP); H04N 2201/04712 (2013.01 - EP); H04N 2201/04729 (2013.01 - EP US); H04N 2201/04731 (2013.01 - EP); H04N 2201/04734 (2013.01 - EP); H04N 2201/04746 (2013.01 - EP); H04N 2201/0476 (2013.01 - EP); H04N 2201/04767 (2013.01 - EP); H04N 2201/04789 (2013.01 - EP US); H04N 2201/04791 (2013.01 - EP US); H04N 2201/04796 (2013.01 - EP); H04N 2201/04798 (2013.01 - EP)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0446812 A2 19910918; EP 0446812 A3 19920715; EP 0446812 B1 19960306; DE 69117547 D1 19960411; DE 69117547 T2 19961024; JP H03266463 A 19911127; US 5153422 A 19921006
DOCDB simple family (application)
EP 91103607 A 19910308; DE 69117547 T 19910308; JP 6785090 A 19900315; US 66551591 A 19910305